package en.edu.scau.cmi.zhanzhiyong.carpter05;

public class Example5_4 {
	
	public static void main(String args[]) {
		
		Circle circle = new Circle();
		double w = 121.709;
		circle.setRadius(w);
		
		System.out.println("circle's radiu is: "+circle.getRadius());
		System.out.println("circle's area is: "+circle.getArea());
		
		w = 100;
		
		System.out.println("circle's radius is: "+circle.getRadius());
	}
}
